Sash-fastener



(NoModeL) N. B. MGG'RATH' 82: J. H. PIERCE.

' SASH FASTENBR;

Patented N ATTORNEYS.

UNITED STATES PATENT. OFFICE.

NICHOLAS BERNARD MOGRATH AND JOHN HARVVOOD PIERCE, OF PLANTS- VILLE, CONNECTICUT.

ISASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 373,993, dated November 29, 1887. Application filed April 19, 1857. Serial No. 235,363. (No model.)

To aZZ whom it may concern.-

Be it known that we, NICHOLAS .BERNARD MOGRATH and JOHN HARWOOD PIERCE, of Plantsville, in the county of Hartford and State of Connecticut, haveinvented a new and Improved Sash-Fastener, of which the following is a full, clear, and exact description.

Reference is to be hadto the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation of thelower corner of a window sash and frame, showing our invention applied thereto. Fig. 2 is a sectional plan view of the same, taken on the line or a: of Fig. 1. Fig. 3 is a detailed broken view of the lever for operating the bolt, showing the anti -frictidn roller applied thereto. Fig. 4 is a detached view of the bolt, and Fig. 5 is a front elevation of the locking-plate.

The invention will first be described in connection with the drawings, and then pointed out in the claims.

A represents a metal casing formed with the flanges a, through which the screws b pass for securingthe fastener to the window-sash B. The edges of the casing Aare cut out or notched at c on opposite sides to form bearings for the lever O, for operating the bolt D. This lever is bent at right angles, and the portion which passes through the casingA is formed with the arms d d. These are parallel with the handle portion at of the lever, and are notched at the ends, as shown at d d, to receive the small gudgeons c e of the anti-friction roller E, as shown in Fig. 3. The lever O and its arms d are cast in one piece without a core, and the roller E is cast with the gudgeons e, so that no drilling is required.

The bolt D is made in two parts-the body f and the block 9. These are connected by a flanged tongue, 9, formed upon the block 9, and the claws ff, formed upon the body f. The block 9 is formed at its outer end with the narrow projection 9 to enter the respective recesses h of the plate H, attached to the stopbead of the window-frame, for locking the sash in closed position or supporting it at any de' sired height.

- Back of the claws f f is formed in the body f of the bolt D the recess f in which is placed the coiled spring f, which presses constantly against the inner end of the tongue 9 of the block, for forcing the block constantly forward to cause it to take up the space be- 5 tween the sash and its frame, thus preventing rattling of the sash.

The body-piece f of the bolt is formed with a curved recess, f, in which the arms d of the lever O and the rollerE operate for withdraw- 6c I ing the bolt and for forcing it forward and locking it, as will be understood from Fig. 2. Back of the bolt is placed the coiled spring J, which constantly presses'the bolt forward.

The front ends of the springs Jf are held in O is held parallel with the window-sash by the action of the spring J, at which time it thrusts the bolt forward to lock the window, and when in this position the bolt is locked forward by the roller E and the arms d, these being in the direct line with the lever G, as seen in Fig. 2.

Towithdraw the bolt for raising or lowering the window-sash, the handle portion (1 of the lever 0 must be reversed, which will reverse the position of the arms d and roller E, which will cause the roller E to strike the back of the recess f and force the bolt back against the pressure of the spring J, and thus withdraw the projection g" from the recess h. The

roller E and arms d will now again take the thrust of the bolt in line with the lever O, and thus lock the bolt in its backward position, so that no attention need be paid further to the fastener in raising or lowering the window.

To lock the window again, it is only necessary 0 to turn the lever 0 back to its original position.

A'considerable play is left between the claws f and the block 9 of the bolt, so that close fitting of the fastener to the window is not required, and so that in case of shrinkage of the wood to which it is applied the act-ion of the fastener will not be interfered with. 7

By constructing the fastener as described, all

of the parts except the springs can be castrco without cores and put together without boring or extra fitting, so that the device as a frame, and will not mar either.

The fastener is adapted to be attached to either the upper or lower sash, and by reversing the lever G the fastener may be applied to enter the right or left hand side of the sash.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent- 1. The body-piecef of the bolt, formed with the clawsf, in combination with the block g, formed with the flanged tongue 9 and acted upon by the spring f, substantially as described.

2. The bent lever G, formed with two arms, d, and having the open bearings or slots (2, in combination with the main casing, the roller E. and the sliding bolt D, substantially as described.

3. The body-piecef of the bolt, acted upon by the spring J,in combination with the connected block 9, acted upon by the spring f substantially as described.

'4. The casing A, notched at 0, the lever 0, formed with the arms d, and the bodypieeef of the bolt, recessed at f and acted upon by the spring J, in combination with the block g, connected to theebody-piecef and acted upon by the spring f substantially as described.

NICHOLAS BERNARD llIcGRATH. JOHN HARWOOI) PIERCE.

Witnesses:

WILLIAM J AMES CORBALLY, CHARLES PLUNKETT MINER. 

